摘要:0.1mol/LKHSO4和0.1mol/LNa2S溶液等体积混合后.溶液能使pH试纸变蓝.则离子浓度关系正确的是 A.[Na+]+[K+]+[H+]=[SO42-]+[S2-]+[HS-]+[OH-] B.[Na+] > [K+] > [H+] > [OH-] C.[Na+]=2[S2-]+[H2S]+[HS-]+2[SO42-] D.[SO42-] > [HS-] > [OH-] > [H+]
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